The stamped outpatient medical record can be called in sick. According to relevant public information, the seal of outpatient medical records is one of the medical vouchers recorded by doctors for diagnosis and treatment of patients. You can ask for sick leave from the unit or school with the outpatient medical record stamped with the official seal of the hospital and the signature of the doctor. Some units or schools will require other medical certificates because of the limitation of time and content of outpatient medical records.